Table 2 SMARTER participant characteristics in each activity

N

38

39

74

Age (mean [SD^a])^b

74.03 (3.81)

75.14 (4.29)

77.19 (6.13)

 Female

18 (50%)

27 (71%)

44 (61%)

 Not reported

2

1

2

Race^c

 Black or African American

2 (6%)

9 (26%)

8 (11%)

 Native American Indian or Alaska Native

1 (3%)

0 (0%)

0 (0%)

 Native Hawaiian or other Pacific Islander

1 (3%)

0 (0%)

0 (0%)

 Asian

2 (6%)

3 (9%)

2 (3%)

 White

30 (83%)

22 (65%)

60 (83%)

 Other

0 (0%)

0 (0%)

2 (3%)

 Multiple races

0 (0%)

0 (0%)

0 (0%)

 Not reported

2

5

2

Hispanic ethnicity

 Hispanic

0 (0%)

1 (3%)

4 (6%)

 Not reported

3

5

3

Education^d

 Less than high school graduate

1 (1%)

0 (0%)

1 (1%)

 High school graduate or obtained general equivalent diploma

1 (3%)

4 (11%)

8 (11%)

 Associate’s degree

1 (3%)

3 ()

6 (8%)

 Some college

6 (16%)

8 (21%)

19 (26%)

 Four-year college graduate

10 (27%)

10 (26%)

15 (20%)

 Professional or graduate degree

19 (51%)

13 (34%)

25 (34%)

 Not reported

1

1

0

Marital status^e

 Married

20 (54%)

17 (46%)

38 (51%)

 Living with partner

1 (3%)

3 (8%)

2 (3%)

 Divorced

6 (16%)

8 (22)

11 (15%)

 Separated

1 (3%)

0 (0%)

0 (0%)

 Never married

1 (3%)

1 (3%)

2 (3%)

 Widowed

8 (22%)

8 (22%)

21 (28%)

 Not reported

1

2

0

How long has low back pain been an ongoing problem for you?^f

 3–6 months

1 (3%)

0 (0%)

1 (1%)

 6 months-1 year

0 (0%)

2 (5%)

2 (3%)

 1–5 years

9 (24%)

13 (34%)

30 (43%)

 More than 5 years

28 (74%)

23 (61%)

37 (53%)

 Not reported

0

1

4

How often has low back pain been an ongoing problem for you over the past 6 months?^g

 Less than half the days in the past 6 months

21 (55%)

14 (37%)

34 (47%)

 At least half the days in the past 6 months

6 (16%)

10 (26%)

15 (21%)

 Every day or nearly every day in the past 6 months

11 (29%)

14 (37%)

23 (32%)

 Not reported

0

1

2

In the past 7 days, how would you rate your low back pain on average? (mean [SD])

3.9 (1.82)

4.8 (2.33)

4.2 (2.13)